Burst packet scheduler for improved ran efficiency in UMTS/HSPA networks

摘要

A method of generating optimal packet workload for achieving a balance between maximizing cell throughput and fairness across multiple users in UMTS/HSPA Network is disclosed. The packet scheduler of the current invention enhances the performance of other schedulers, such as Proportionally Fair Scheduler in NodeB and RNC in UMTS/HSPA Networks by monitoring recent RAN bandwidth to each mobile device, and increasing buffer occupancy of high rate data-flows in the RAN devices. The scheduler uses the desired performance goals of maximum cell throughput and fairness at various network congestion levels, and controls egress burst rate while delivering packets to the RAN (Radio Access Network).

主权项

1. A method of scheduling packets within a radio access network (RAN), wherein the method is implemented in a transit network device upstream of a Node B within the RAN, comprising:
receiving packet streams from a plurality of end users; receiving operator configured network parameters; calculating network conditions; buffering the received packet streams, separating per user packet streams, and scheduling further transmission of the packet streams with different relative timing and rates than the timing and rates at which those packet streams were received based on the received packet streams and parameters and calculated conditions; writing data into a diffserv field within a user payload packet header based on the scheduling decision prior to the further transmission; and wherein a Node B receives the packet stream after the further transmission and further schedules the packets for transmission to individual end user devices.